Hello,
when entering new information/articles to the Knowledge base, there are different other modules like "similar entries, documents, tickets, projects" on the right side.
I would like to add the possibility also to map to related "Internal tickets" instead only "Tickets". I could not find where to configure in the system settings.
Thanks!
Hello, you can add additional relations to modules if you go to Software configuration > Standard modules > Modules – Relations. See the screenshots below:


@KatarzynaUlichnowska
Thanks a lot! I already saw that settings, but did not understand the functionality.
But my problem is now, that I don't have the button to add relations?! I am admin on that system.

I am testing on YF 5.3 SP4
Looking at gitstable it is the same behavior:

Is this a bug?
No, it's not a bug. It is a stable version and therefore it is disabled by default because the operation requires knowledge. In order to enable the button, set the CHANGE_RELATIONS value to true in the configuration.
OK, thanks!
YetiForceCRM/config/developer.php
'CHANGE_RELATIONS' => false,
Found also this entry here: https://github.com/YetiForceCompany/YetiForceCRM/issues/7812#issuecomment-415358611